Home / 259,985.16-358,432.56-206,447.40

Finding the Fourth Proportional to 259,985.16, 358,432.56 and 206,447.40

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Solution

The fourth proportional to 259,985.16, 358,432.56 and 206,447.40 is: 284,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,985.16 : 358,432.56 = 206,447.40 : x
  2. Step 2: Convert to fraction form
    259,985.16/358,432.56 = 206,447.40/x
  3. Step 3: Cross multiply
    259,985.16x = 358,432.56 × 206,447.40
  4. Step 4: Simplify right side
    259,985.16x = 73,997,470,087.34
  5. Step 5: Solve for x
    x = 73,997,470,087.34/259,985.16
  6. Step 6: Final answer
    x = 284,621.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.